JPH0532523A - Gel-like pack - Google Patents

Abstract

PURPOSE:To obtain a gel-like pack containing a water soluble high polymer, silicic anhydride and sorbitol, capable of readily applying, having a good blocking property and oil absorption properties as well as cool feeling and capable of wushing off. CONSTITUTION:A gel-like pack comprising (A) a water-soluble high polymer containing at least sodium polyacrylate and/or carboxyvinyl polymer and, as necessary, gum, polyvinyl alcohol, sodium alginate, etc., (B) silicic anhydride, having 0.1-30mum, preferably 1-15mum particle diameter, preferably globular and hydrophilic and (C) sorbitol, at ratios of the component A of 0.1-20%, the component B of 1-30% and the component C of 5-50%. Sodium polyacrylate and/or carboxyl vinyl polymer content in the component A is 0.1-5%, preferably 0.1-1%. Oil absorption properties and cool feeling of the pack can further be enhanced by foaming the pack in the presence of a surfacetant used as a foaming agent.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a gel pack material,
More specifically, the object is to provide a gel-like pack material that is easy to apply, has good occlusive properties and oil absorption properties, has a cool feeling, and can be washed.

[0002]

2. Description of the Related Art Conventionally, as a type of packing material, a filly pack containing polyvinyl alcohol as a main component, a clay pack containing inorganic powder such as kaolin as a main component, a wax pack mainly containing paraffin, and other foam packs,
Stone stove packs are known.

[0003] Each of these pack materials has a blood circulation promoting effect by a skin blockage effect and a cleaning effect by absorbing excessive sebum.

[0004]

However, since all of the above-mentioned conventionally known pack materials utilize the skin-occluding action, a warm feeling is usually felt during application,
On the contrary, this feeling of heat is also a cause of dislike of using the pack charge in the summer. On the other hand, as a pack material for softening the warm and cold feeling, there is also a pack containing a part of sodium alginate as a main ingredient, but there are drawbacks in ease of application and feel.

The present invention has been made in view of the above circumstances, and is excellent in ease of application, clogging and oil absorption as well as the conventional pack material, and imparts a cool feeling to the skin. The challenge is to provide a pack fee to obtain.

[0006]

Means for Solving the Problems As a result of intensive research to solve the above problems, the present inventor has added sorbitol to a gel structure formed from a specific water-soluble polymer and silicic acid anhydride. At times, it was found that a cooling sensation can be imparted while maintaining the occlusive property and oil absorption, and that the cooling sensation can be further enhanced by foaming it in the presence of a surfactant, and based on this, The present invention has been completed.

That is, the present invention is a gel-like packing material containing a water-soluble polymer containing at least sodium polyacrylate and / or carboxyvinyl polymer, silicic acid anhydride, and sorbitol. , The content of the water-soluble polymer, silicic acid anhydride and sorbitol is 0.1 to 20% by weight and 1 to 30% by weight, respectively.
And 5 to 50% by weight, foamed in the presence of a surfactant, and the foaming rate is 5 to 30% by volume of the total foam inclusion rate. It relates to the pack fee.

The present invention will be described in detail below.

The water-soluble polymer applicable to the present invention includes at least one or both of sodium polyacrylate and carboxyvinyl polymer,
In some cases, it is used together with other water-soluble polymers such as carboxymethyl cellulose, cellulose derivatives such as methyl cellulose, gums such as xanthan gum and quince seed, polyvinyl alcohol, sodium alginate and the like.

The content of the water-soluble polymer with respect to the gel-like packing material is selected in the range of 0.1 to 20% by weight, and the content of sodium polyacrylate or carboxyvinyl polymer as the main ingredient is 0.1 to 20% by weight. 5% by weight, preferably 0.1 to 1% by weight, and 0.1 to 5% by weight for cellulose derivatives and gums used for the purpose of stabilizing the gel state, and further film formation. For polyvinyl alcohol and the like used for the purpose of imparting properties, the range of 0.5 to 10% by weight is selected, respectively.

Next, the silicic acid anhydride which is similarly applied to the present invention may be one which is usually used in cosmetics,
The particle size is 0.1 to 30 μm, preferably 1 to 15 μm
And preferably spherical and hydrophilic. Further, the content of the gel pack material is 1 to
It is 30% by weight, preferably 5 to 15% by weight.

Further, in the gel pack of the present invention, sorbitol is contained in the gel structure formed of the water-soluble polymer and silicic acid anhydride in an amount of 5 to 50% by weight, preferably 20 to 30% by weight. Contained in.

In the present invention, a gel-like pack material having good coating properties, occlusive properties, oil absorption properties, and a cool sensation can be obtained by containing the water-soluble polymer, silicic acid anhydride, and sorbitol. In the invention, by further foaming in the presence of a surfactant as a foaming agent, it is possible to further enhance the oil absorption and the cooling sensation.

The surfactant used here may be an anionic surfactant, a nonionic surfactant, a natural surfactant or the like, and specifically, for example, sodium alkyl sulfate, polyoxyethylene sorbitan fatty acid ester, Polyglycerin fatty acid ester, sucrose fatty acid ester,
Acyl amino acid ester and the like can be mentioned, and it is used in the range of 1 to 10% by weight, preferably 2 to 5% by weight.

The foaming method itself may be carried out according to a conventional method. For example, mixing and stirring may be performed while blowing an inert gas such as air, or mixing may be performed by using a mixer having a stirring blade for entraining air. Stir.

At this time, the amount of bubbles contained in the gel pack material is 5 to 30 with respect to the whole as a bubble inclusion rate.
The volume ratio is preferably in the range of 15 to 25% by volume, and the apparent specific gravity at this time is in the range of 0.8 to 1.0. At an encapsulation rate of less than 5% by volume, the effect of enhancing the cooling sensation is hardly felt, and conversely, at an encapsulation rate of more than 30% by volume, the occlusive property is lowered, which is not preferable.

In the gel-like packing material of the present invention, the above-mentioned essential components such as water-soluble polymer, silicic acid anhydride, sorbitol,
Further, in addition to the surfactant, organic / inorganic powders, polyhydric alcohols, preservatives, polysaccharides, vitamins, fragrances, etc. can be further compounded, if necessary. In particular,
Regarding polyhydric alcohols such as 1,3-butylene glycol and glycerin, the aim is to improve the touch surface.
For organic / inorganic powders such as kaolin, titanium oxide, acrylic powder, microcrystalline cellulose, etc., about 0.5-about with the aim of improving stability of gel state, oil absorption or closing property.
Used in the range of 25% by weight.

Here, to describe the characteristics of the present invention, in the conventional pack amount containing the gel-like packing material, it was necessary to enhance the oil absorption and the closing property in order to enhance the packing effect. As a feeling of use, there was an adverse effect of feeling a heat sensation or a feeling of heat, whereas in the present invention, by using the above-mentioned specific three components in combination, and further by foaming them, the pack effect is not impaired. The point is that the feeling has been improved.

[0019]

EXAMPLES The present invention will be described in more detail below with reference to examples. The mixing ratio is% by weight.

Example 1. Gel pack     Sodium polyacrylate 0.1     Carboxy vinyl polymer 0.2     Carboxymethyl cellulose 0.3     Silicic anhydride 5     Sorbitol 25     Cyclodextrin 0.1     Sodium hyaluronate 0.01     Microcrystalline cellulose 1     Glycerin 15     1,3-butylene glycol 8     Methylparaben 0.2     Purified water 45.09

Example 2. Foaming type gel-like pack (foam inclusion rate 20 vol%) Sodium polyacrylate 0.1 Carboxyvinyl polymer 0.2 Carboxymethyl cellulose 0.5 Silica anhydride 6 Sorbitol 30 Cyclodextrin 0.1 Elastin hydrolyzate 0.1 Fine Crystalline cellulose 2 Titanium oxide 1 Acrylic powder 5 Glycerin 20 1,3-butylene glycol 8 Sucrose fatty acid ester 4 Methylparaben 0.2 Purified water 22.8

Example 3. Foaming type gel-like pack (foam inclusion rate 10 vol%) Sodium polyacrylate 0.3 Carboxyvinyl polymer 0.6 Polyvinyl alcohol 2 Xanthan gum 0.1 Silica anhydride 10 Sorbitol 20 Microcrystalline cellulose 3 Titanium oxide 1 Glycerin 151, 3-Butylene glycol 5 N-lauroyl glutamic acid triethanolamine 2 Methylparaben 0.2 Perfume 0.2 Purified water 40.6

(Comparative Experiment) The gel pack material obtained by the present invention and the conventional pack material were compared by oil absorption measurement, skin temperature measurement and sensory evaluation.

<Measurement of Oil Absorption> Sample (a) Gel pack of Example 1 of the present invention (b) Foaming gel pack of Example 2 of the present invention (c) Having the following composition (% by weight) Conventional clay pack [Prescription] Kaolin 10 Stearic acid 5 Cetanol 1 Liquid paraffin 7 Polyethylene glycol monostearate 0.3 Glycerin monostearate 0.2 Talc 2 Methylparaben 0.2 1,3-Butylene glycol 8 Purified water 66.3

Experimental Method Five female panels were used as test subjects, and the amount of sebum on the cheeks of the face was measured with a sea bum meter (manufactured by SCHWARTZ HAUPT). That is, the amount of sebum (control) was measured in advance before applying the sample. Next, after applying the sample to the face and leaving it for 10 minutes, after washing and wiping, the amount of sebum is measured again,
The amount of sebum was measured after 30 minutes and 60 minutes. The results are shown in Fig. 1 as the ratio of the sebum amount values after 10, 30, and 60 minutes to the control sebum amount values for the average value of 5 persons.

As can be seen from the results of FIG. 1, the decrease in the amount of sebum when the gel pack (a) and the foaming gel pack (a) of the present invention are applied is decreased by the conventional clay pack. It was proved that it was significantly larger than the case of applying (C) and was excellent in oil absorption.

<Measurement of Skin Temperature> The gel packs (a) and (a) of the present invention used for measuring the oil absorption of the sample and the conventional clay pack (c) were used.

Experimental Method The skin temperature of the face and cheeks was measured using 5 female panels as subjects, using Thermography TUS-5500 (manufactured by Nippon Avionics Co., Ltd.). That is, the skin temperature (control) was measured in advance before applying the sample. Next, the skin temperature is measured when the sample is applied to the face and left for 5 minutes, washed and wiped off, and the skin temperature is measured again.
The skin temperature was measured after 25 and 35 minutes. The results are shown in FIG. 2 as the difference of the skin temperature at each time with respect to the skin temperature of the control for the average value of 5 persons.
It was shown to.

As shown in the results of FIG. 2, the gel pack (a) and the foaming gel pack (a) which are the products of the present invention are remarkably different from the conventional clay pack (c). It was revealed that the skin temperature greatly decreased and the cool feeling was excellent. In particular, it was also proved that when a foam type gel-like pack is used, a skin temperature lowering, that is, a cooling sensation can be given to a non-foaming gel-like pack nearly twice.

<Sensory Evaluation> The gel packs (a) and (a) of the present invention used for sample oil absorption measurement and the conventional clay pack (c) were used.

Experimental Method 60 Japanese women were randomly divided into 3 groups (groups A to C), 20 of which were each a gel pack (A) of the present invention in group A and a group of B in group B. The foaming gel pack (a) of the invention product and the conventional clay pack (c) of Group C were applied to the face, respectively, and the feeling of use was obtained 10 minutes after the application. Were compared between groups. As evaluation items, the cool feeling during application and the refreshing feeling after washing were performed. The results are shown in Table 1.

[0032]

[Table 1]

As shown in the results of Table 1, the gel packs (a) and the foaming gel packs (a) of the present invention are much more remarkable than the conventional clay packs (c). It was demonstrated that the cool feeling during use and the refreshing feeling after use due to oil absorption are excellent, and this effect is remarkable especially in the case of the foaming type.

[0034]

EFFECTS OF THE INVENTION According to the present invention, of course, compared with the conventionally known pack materials and the like, the feeling of use such as cooling feeling is excellent without impairing the effects such as oil absorption and blockage. Therefore, it can be used without adverse effects such as coating property and cleaning property.

[Brief description of drawings]

FIG. 1 is a diagram showing a relationship between time and a sebum amount ratio.

FIG. 2 is a diagram showing the relationship between time and skin temperature.

Claims (4)

[Claims] 1. A gel-like packing material containing a water-soluble polymer containing at least sodium polyacrylate and / or carboxyvinyl polymer, silicic anhydride, and sorbitol. 2. The content of the water-soluble polymer is 0.1 to 20% by weight, the content of silicic acid anhydride is 1 to 30% by weight, and the content of sorbitol is 5 to 50% by weight. The gel pack charge described in. 3. The gel-like packing material according to claim 1, which is foamed in the presence of a surfactant. 4. The foaming rate is 5 to 3 of the whole as a foam inclusion rate.
The gel pack material according to claim 3, which is 0% by volume.